TABLE 2.
Multivariable robust Poisson regression models of knee pain prevalence, nursing home workers, 2012–2013 (F5), n = 2642; prevalence rate ratio (95% confidence interval)
| Covariate | MODEL A |
MODEL B |
|||
|---|---|---|---|---|---|
| Prevalence rate ratio | 95% confidence interval | Prevalence rate ratio | 95% confidence interval | ||
| Demographic characteristics | |||||
| Age | 1.01 | 1.00–1.02 | 1.01 | 1.01–1.02 | |
| Gender | |||||
| Male | 1.0 | 1.0 | |||
| Female | 1.68 | 1.29–2.19 | 1.60 | 1.24–2.08 | |
| BMI | 1.03 | 1.02–1.04 | 1.03 | 1.02–1.04 | |
| Medical history | |||||
| Serious knee injury in last 12 months | 3.32 | 2.73–4.03 | 3.39 | 2.78–4.03 | |
| Job exposures | |||||
| Composite physical exposure | 1.03 | 1.01–1.06 | 1.04 | 1.01–1.06 | |
| Social support | 0.97 | 0.94–1.01 | |||
| Job strain | 1.29 | 1.07–1.56 | |||
No confounding or interaction of exposure effects by prior knee pain, BMI, gender, age, chronic disease, physical exercise, assault.